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Climate Change Impacts in Polar Regions: Lessons from Antarctic Moss Bank Archives

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Mosses are the dominant plants in polar and boreal regions and are experiencing rapid impacts of regional warming. Peat cores from moss banks contain a temporal record of past climate change in terrestrial plant Antarctic systems. The use of Carbon-13 and Oxygen-18 signals in organic material has been related to rates of moss accumulation in the maritime Antarctic. The interplay between moss growth form, photosynthetic physiology, water status and isotope composition will be compared with additional proxies, such as testate amoebae. The studies demonstrate the impact of warming throughout the Antarctic peninsula, and have implications for northern hemisphere moss growth in a changing climate.

This talk is part of the Sedgwick Club talks series.

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